Piston-rod gland.



`useful improvements in piston-rod glands,

UNITED STATES PATENT OEEICE.

DALTON RISLEY, OF OMAHA, NEBRASKA, ASSIGNOR, BY MESNE ASSIGN- MENTS, TOCLEVELAND METALLIC PACKING COMPANY, OF CLEVELAND,

OHIO.

PISTON-'ROD GLAND.

No. 845,122. Specification of Letters Patent. Patented Feb. 26, 1907.

Application filed April 28, 1906. Serial No. 314,217.

A' the packing is confined by virtue of the engagement with follower12', the latter being under constant pressure exerted by the tension ofcoil-spring 4 in the following manner: Follower 12 is provided with areduced inner end 14, providing a shoulder 15. A ring 16 seats onreduced portion 12 and abuts shoulder 15 thereof. It will thus beobserved that ring 16 is engaged by one end of coil-spring 4 and, due tothe relation just described as existing between ring 16 and thefollower, the latter is retained under constant pressure.

Cap 9 is formed with openings 9 to receive a Spanner-wrench whereby thecap may be removed and replaced, it being observed that by removing cap9 cone 11 the packing-rugs 12, and the follower may all be removedwithout disturbing spr ng 4, which latter is retained against movementby flange 6 of the gland, the tension of the coil-spring forcing ring 16to a position to engage said flange, a sl ght space existing betweenflange 6 and ring 16 in order that the follower may i be automaticallymoved bythe spring to i take up wear as the same occurs. It willconsequently be observed that the packing, together with its appurtenantparts, may be removed without disturbing spring 4, and, further, bysimple removal of bolts 7 the entire gland may be instantly removed,permitting access to the spring.

By providing the gland with the parts as described a great saving intime is effected in removing and replacing the packing, since I entirelyobviate disturbance of spring 4, which is the source of great difficultyand tedious operation in the replacement of the individual parts inassembling the same.

In Fig. 2 I show a modification which essentially differs from thepreferred form indicated in Fig. 1 in that the gland as an entirety isremoved instead of a component.

To @ZZ whom t may concern:

Be it known that I, DALToN RIsLEY, a citizen of the United States,residing at O.naha, in the county of Douglas and State of Nebraska, haveinvented certain new and useful Improvements in Piston-Rod Glands, ofwhich the following is a specification.

My invention pertains to certain new and l and has for its pri Ainaryobject the provision of a gland so constructed and related to thestuffing-box that the metallic packing rings or segments may be removedor replaced without disturbing the coil-spring, which I latter retainsthe follower for the packing in engagement with the packing rings orsegments to thereby assure absolutely steamtight joints.

With the above and other objects in view the invention further consistsin the details of construction and combination of parts now to be fullydescribed and later pointed l out in the claims.

Referring' to the accompanying drawings, 'wherein like characters ofreference denote similar parts throughout the several views, f Figure 1is a central vertical sectional view l of my invention, showing thesaine applied to j a piston-rod; and Fig. 2 is a like view of a jmodification embodying the same principle of operation.

In practice a stuffing-box (designated 1) is employed which embodies anannular wall 2 and a fiange 2', projecting outwardly therefrom, wall 2being spaced from the pistonrod 5 to provide a chamber for thecoilspring 4.

My invention particularly resides in the construction of gland, thelatter being designated 5 and being formed with a'flange 6, projectinginwardly and abutting flange 2 of the stuffing-box. rIhe gland 5 issuitably secured to the stuffing-box by bolts 7 and further embodies athreaded part 8, which is l part thereof, as I have indicated preferenceengaged by the shell or cap 9, which latter for. In this form of theinvention I thread has threaded portion 10 for t hat purpose. i theinterior of the stuffing-box (designated The interior outer portion ofcap 9 receives l 1) as at 20 and secure a threaded ring 21 cone 11,which provides an abutting surface j thereto, which ring, projectinginwardly, for the metallic packing rings or segments forms an abuttingsurface for ring 16, 12, which are preferably of the form disj againstwhich coil-spring 4 engages. The closed in Letters Patent granted toJohn gland 5 is formed with an inwardly-project- Badeker, December 20,1904, No. 777,655,

ing and exteriorly-threaded wall 22, which October 17, 1905, N o.801,959, and October j engages in a threaded depression 23, formed 17,1905, No. 801,960. The opposite face of in the stuffing-box.

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By mere removal of bolts 7 gland 5 may be instantly removed, therebypermitting access to the packing and related parts without disturbanceof spring Li', as in the prel ferred form of the invention.

Various changes in the form, proportions, and minor details of theinvention may be resorted to at will without departing from the spiritthereof. Hence l consider myself entitled to all such variations as maylie within the scope of the claims.

Having thus fully described my invention, what l claim as new, anddesire to secure by Letters Patent, is

1. ln combination with a stuffing-box having a spring therein, a glandsecured to said stuffing-box, a cone engaging said gland and the packingheld therein, a folj lower engaging said packing, a ring seated on sa dfollower and normally engaged by said spring, and a projection spacedfrom the ring engagement therewith to restrict the outer movement ofsaid ring.

2. ln combination with a stuffing-box having a spring therein, a glandsecured to said stuffing-box, a cone engaging said gland and the packingheld therein, a follower engaging the packing, a ring movably mounted onsaid follower, a spring engaging the ring and a projection receivingsupport from the stuffing-box to restrict the outer movement of saidring and spring when the gland and packing are removed.

3. ln combination with a stuffing-box j having a spring therein, a glandon the stuffing-box, packing having one side thereof engaged by thegland, a follower for engaging the opposite side of said packing, saidfollower having a reduced inner end forming a shoulder, a ring seatingon said reduced portion and engaging said shoulder and being engaged bysaid spring, and a projection for engagement with said ring to restrictthe outer movement thereof, said ring being normally out of engagementwith said projection.

4. ln combination with a stufling-boX having a spring therein, and agland secured thereto, packing engaging said gland, and said spring, andmeans wherebysaid packing may be removed without disturbing said spring.

5. ln combination with a stufling-box having a spring therein, and agland secured thereto, packing disposed between said gland and springand under constant pressure exerted by said spring, and means wherebysaid acking may be removed from engagement with said spring and wherebythe latter will be retained against outer movement. j

6. ln combination with a stuffing-box having a spring therein, and agland secured l thereto, packing disposed between the gland l and springand under constant pressure eX- erted by the spring, and means forengagei nient with said spring whereby its outward movement will bearrested when said packing is removed.

7. In combination with a stuffing-box having a spring therein, and agland secured thereto, packing disposed between the gland and spring andunder constant pressure eX- erted by said spring, and a projectionnormally out of engagement with the spring to engage the latter andarrest the outer movement thereof when said packing is removed.

8. ln combination with a stuffing-boxhaving a spring therein, and agland secured thereto, an inwardly-extending flange carried by thegland, a removable cap on the gland, a ring engaged by said spring andnormally out of engagement with said flange, packing disposed betweensaid cap and spring, and a follower having a reduced portion with a ringseating on said reduced portion.

9. ln combination with a stuffing-box having a spring therein, a glandsecured to said stuffing-box and formed on its inner end with aninwardly-extending flange, a cap threaded into engagement with saidgland, packing engaging in the cap, a follower for the packing having areduced portion forming a shoulder, and a ring movably seated on saidreduced portion and abutting said shoulder, said ring being engaged bysaid spring, and being forced thereby into engagement with said flangewhen the packing is removed.

10. In combination with a stuffing-box having a spring therein, a glandhaving threaded engagement therewith and means for restricting the outermovement of said spring when said gland which contains the packing isremoved.

11. ln combination with a stuffing-box havin0`- a spring therein, agland having threaded engagement with said stuffing-box, packingdisposed between the gland an spring and under constant pressure exertedby said spring, and means whereby said packing may be removed withoutdisturbing said spring.

12. ln combination with a stuffing-box having a spring therein, a glandhaving threaded engagement with said stuffing-box, packing disposedbetween the gland and spring and under constant pressure exerted by saidspring, and means for engagement with said stuffing-box whereby saidpacking may be removed and be replaced without disturbing tlie eXtremeouter movement of the spring and the means for engagement with saidspring when the gland and packing are removed.

ln testimony whereof I affix my signature in presence of two witnesses.

DALTON RISLEY.

Witnesses:

J. A. BENEDICT, T. C. JEFFERis.

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